Shah, Shoukat Hussain. “Comparative Effects of 4-Cl-IAA and Kinetin on Photosynthesis, Nitrogen Metabolism and Yield of Black Cumin (Nigella Sativa L.)”. Acta Botanica Croatica, vol. 70, no. 1, Apr. 2011, https://ojs3.abc.botanic.hr/index.php/abc/article/view/380.